public override IEnumerable <object> ConvertTokens(IEnumerable <object> sequence)
{
var enumerator = sequence.GetEnumerator();
while (enumerator.MoveNext())
{
var item = enumerator.Current;
var startExpression = item as StartExpressionToken;
if (startExpression == null)
{
yield return(item);
continue;
}
var possibleBody = GetNext(enumerator);
if (!(possibleBody is Expression))
{
throw new HandlebarsCompilerException(String.Format("Token '{0}' could not be converted to an expression", possibleBody));
}
var endExpression = GetNext(enumerator) as EndExpressionToken;
if (endExpression == null)
{
throw new HandlebarsCompilerException("Handlebars statement was not reduced to a single expression");
}
if (endExpression.IsEscaped != startExpression.IsEscaped)
{
throw new HandlebarsCompilerException("Starting and ending handlebars do not match");
}
yield return(HandlebarsExpression.Statement(
(Expression)possibleBody,
startExpression.IsEscaped,
startExpression.TrimPreceedingWhitespace,
endExpression.TrimTrailingWhitespace));
}
}